winfrom判断勾选弹出提示

Question

            bool b = false;
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue != true)
                {
                    b = true;
                    break;                    
                }
            }
            if (b)
                MessageBox.Show(TT);

Answer 1

版主大人,逻辑反了吧,他是想判断未选中啊,应该是这样:            if (!b)
                MessageBox.Show(TT);

Answer 2

是不是应该这样的哦            DataTable dtShow = new DataTable();            dtShow = (DataTable)this.form1.dataGridView1.DataSource;
            bool b = false;
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)//这里把！=改成==
                {
                    b = true;
                    break;
                }
            }            if (b)
            {
                    for (int i = 0; i < dataGridView1.Rows.Count; i++)
                    {
                                             if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)     //查找被选择的数据行
                        {
                        string GoodsCode = dataGridView1.Rows[i].Cells["name"].Value.ToString();
                        string GoodsName = dataGridView1.Rows[i].Cells["password"].Value.ToString();
                        MessageBox.Show("选择的物品是:" + GoodsName);
                     
                    }
                }
            }
            else
            {
                MessageBox.Show("请选择");            }

Answer 3

版主大人,逻辑反了吧,他是想判断未选中啊,应该是这样:            if (!b)
                MessageBox.Show(TT);

是不是应该这样的哦            DataTable dtShow = new DataTable();            dtShow = (DataTable)this.form1.dataGridView1.DataSource;
            bool b = false;
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)//这里把！=改成==
                {
                    b = true;
                    break;
                }
            }            if (b)
            {
                    for (int i = 0; i < dataGridView1.Rows.Count; i++)
                    {
                                             if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)     //查找被选择的数据行
                        {
                        string GoodsCode = dataGridView1.Rows[i].Cells["name"].Value.ToString();
                        string GoodsName = dataGridView1.Rows[i].Cells["password"].Value.ToString();
                        MessageBox.Show("选择的物品是:" + GoodsName);
                     
                    }
                }
            }
            else
            {
                MessageBox.Show("请选择");            }

Answer 4

是不是应该这样的哦            DataTable dtShow = new DataTable();            dtShow = (DataTable)this.form1.dataGridView1.DataSource;
            bool b = false;
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)//这里把！=改成==
                {
                    b = true;
                    break;
                }
            }            if (b)
            {
                    for (int i = 0; i < dataGridView1.Rows.Count; i++)
                    {
                                             if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)     //查找被选择的数据行
                        {
                        string GoodsCode = dataGridView1.Rows[i].Cells["name"].Value.ToString();
                        string GoodsName = dataGridView1.Rows[i].Cells["password"].Value.ToString();
                        MessageBox.Show("选择的物品是:" + GoodsName);
                     
                    }
                }
            }
            else
            {
                MessageBox.Show("请选择");            }

恩，对了。自己试一把就知道了

Answer 5

       bool b = false;
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if ((bool)dataGridView1.Rows[i].Cells[0].EditedFormattedValue == true)
                {
                    b = true;
                    break;                    
                }
            }
            if (!b)
                MessageBox.Show("请选择!");